台灣之燃煤電廠每年產生燃煤底灰約計50萬噸，目前平均利用率不到3％，多數堆積在場區，造成堆置空間不足之壓力及環境污染之顧慮。燃煤底灰內含有豐富的SiO2、Al2O3及Fe2O3等成份，可提供製造玻璃所需之原料，並含有幫助成核之TiO2，進而轉化結晶玻璃。如欲獲得性質良好之結晶玻璃，需有適當的玻璃形成分子及玻璃修飾分子，且比例要適當。而在燃煤底灰中，添加碳酸鋰(Li2CO3)以增加玻璃修飾分子(如Li2O)之比例，以期能降低精底灰熔點，並利用適當之熱處理獲得性質優良之結晶玻璃。
　　本研究針對燃煤底灰添加20wt%之碳酸鋰，由於碳酸鋰在高溫能分解出Li2O，讓燃煤底灰在熔製玻璃時，降低精底灰熔融溫度，增加融液之流動性，使底灰玻璃易於成型，並且鋰離子(Li+)具有高的離子場強度，能促進玻璃分相，以利底灰玻璃產生結晶。高溫熔融得到底灰玻璃之後，經適當之熱處理程序，製成結晶玻璃。所得之結晶玻璃利用DTA、XRD分析其玻璃結晶之行為，並探討添加碳酸鋰對結晶玻璃之結晶行為及成品物化性質之影響。並以前人所建立的理論為依據，進而求得底灰玻璃的成核熱處理之最佳條件(如最大成核速率溫度、時間及結晶活化能)。
將所得之熔塊經一階段及二階段之熱處理程序，發現所獲得之結晶相均相同，而結晶相之種類，包含有類β-鋰霞石之鋰鋁矽固溶體、矽灰石及矽酸鋰等相。二階段熱處理之最佳成核溫度為570℃持溫4小時。
　　由一階段熱處理所獲得之活化能為378.13 KJ/mole，二階段熱處理之活化能為434.71 KJ/mole，顯示結晶相較適於一階段熱處理之製程。此外，在物理性質方面，微硬度實驗結果顯示經過熱處理之結晶玻璃，均較原底灰玻璃為高，表示玻璃之結晶行為確能補強玻璃。

　　The coal combustion electric power plant generates total bottom ash of half million tons annually. The chemical composition of bottom ash is mostly SiO2 and Al2O3, with Fe2O3 and alkaline oxide such as Na2O, CaO, MgO, K2O, which also makes the major composition of glass raw materials. Furthermore, Li2O can serve as modifier to reduce viscosity of the melt as well as fusion point of bottom ash.
　　The glass from bottom ash then heat-treated to enhance nucleation and crystal growth to obtain crystallization glass. The use of analytical instruments (DTA, XRD), can investigate the crystal behavior of crystallization glass. The mechanics and kinetic energy of crystal growth will be studied too. Finally, an optimum recipe to formulate and processing of crystallization glass to pilot plant hopefully obtained.
　　This research added 20wt% Li2CO3 into bottom ash, and utilized Li+ with higher ionic field strength to enhance the phase separation of glass, and promote crystallization ability of glass, and then transforming to crystallization glass by single or two heat-treatment, the major crystalline phase was lithium aluminum silicate (Li1.01(AlO2)1.03(SiO2)1.16). Kinetic parameters for nucleation and crystal grow were estimated from the DTA curve. The temperature of maximum nucleation rate was 570℃ and the most appropriate nucleation time was 4 hours.
　　The activity energy of single heat-treatment was 378.13 KJ/mole, and of two heat-treatment was 434.71KJ/mole. It shows the single heat-treatment is more suitable for the major phase. In physical properties examination exhibited the crystallization behaviour of glass indeed reinforced origin glass.

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